Blow-out guard for inner tubes.



G. c. YOUNGGREBN az J. c. LoBP. BLOW-OUT GUARD POB, INNER TUBES.

APPLICATION FILED 00T. 86, 1909.

972,976. Patented 0n.18,191o.

GBOVER C. YOUNGGREEN Jouir o. naar, or Los antennas, connu.

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Specification of Letters Patent.

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Application led October 26, 19GB. Serial No. 524,709.

T o all whom it may concern: 'Y

Be 1t known that we, GRovER C. YOUNG- GREEN, a' citizen-of the United States, and

JOHN C.LOEF, a Swedish subject, both residing at Los Angeles, in the county of Los An'- ge es and State of California, have invented a new and useful Blow-Out Guard for Inner Tubes, of which the following is a specification.

This invention relates to a-devicejwhich is adapted to be inserted inside the casing -of a pneumatic tireI for preventingthe inner tube from blowing'out through a hole or weak place in the outer casing, and the main object of the invention is to provide such means which can be uickly applied within the tire to securely ho d the inner' tube from enlarging at the weak oint in the outer casing and being blown t erethrough by the air pressure from. within.

A further object is to construct such device of inexpensive materials.

A further object is to provide means for quickly securing the edges of the guard together to posltivelylho d the guard to a fixed size and thus retain the inner tube.

As the device is so constructed that when fastened in place'in the tire its size is fixed, it is-contemplated supplying thesedevices in varioussizes, so that they may be readily applied to the particular size yof tire for which it is made.

Referring to the drawings Figure 1 is a VertiCaLlongitudnal section through a portion of a tire having a weak placein its outer casing, and the blowout guard being applied to the tire. Fi 2 is a plan View of the inner face of the b owout guard. Fig. 3 is a section on line ac3-m3 Fig. 2. Fig. 4 is a perspective view of the clasp.

1 designates the outer casing of the tire.

. 2 designates the rim of the wheel.

Vt-ion from the weak spot 4. The blowout guard comprises a cylindrical sleeve 5 formed of canvas or other suitable material preferably in two layers as indicated in Fig. 3. The outer la er 6 is Vdoubled back on itself for a short istance as at 7 and secured by *rivets 8. The outer la er 6 on the opposite side isdoubled bacii 9 to form an inner layer 10 which forms a gap 11 between the two edges, an'd the inner layer 10 is extended around inside the outer layer das far Vas the folded portion 7, at which point it passes over the folded portion 7 and extends across the gap 11,v thus forming a'fiap 12 whichlaps over theother side of the guard so as to prevent the inner tube from being forced into the gap 11.v

The two edges of the guard are securedtogether by fasteners which comprise hook members 14 and eye members 15. The hook members 14 are secured by the rivets 8 andl The hooks 16 are adapted to engage the eyes on' itself as at 15 as indicated in Figs. 2, 3 and 4, and when so engaged thespring tongues 17 prevent the eyes from disengaging from the hooks,

and the flap 12 covers the rivets 8 and 1S and hooks-14 and 15 and thus prevents the inner tube 3 from coming in contact with these parts or being forced between the edges of the guard. A

The guard is placed around the inner tube, as indicated in Fig. 1, and when secured by the clasps 13 forms a nonstretchable cylinder which serves as a jacket conning the inner tube lfor a certain distance and positively preventing the inner tube from being forced out by tlfe air pressure through the weak place or hole 'in the tire. The device being of canvasl` can be readily folded flat and thus occupies little room.

We do not limit ourselves to using canvas as the-'material of which the device is constructed, as any other material which is suiciently iexible and nonstretchable could be employed in lieu thereof.

What we claim is A blow out guard for inner tubes comprising a jacket of non-stretchable thin material for insertionv within the outer casing slet our hands at Los'AngeleS, California, this 20th day of October 1909.

eRoVER o. YOUNGGREEN. JOHN of-LoEF.

In presence of-- y G. T. HACKLEY, P. H. SHELTON. 

